Tilermolding machine



J. W. WARREN Nov. 2 1926.

TILE MOLDING MACHINE Filed June ll, 1923 2 Sheets-Sheet 1 Nov. 2 1926. 1,605,801

J. W. WARREN TILE MOLDINGA MACHINE Filed June l1, 1923 2 Sheets-Sheet 2 @Hoz wmf,

Patented Nov. 2, 1926.

* UNITED STATES PATENT OFFICE.

JOHN WRIGHT WARREN, .0F

ELIZABETI-ITON, TENNESSEE.

TILufMoLDING MACmNE.

Application led June `11,

place an end lug on the tile for the purpose of cutting oif capillaryaction `and `thus preventing leakage `in theroof Wheresaid` tiles are employed. f

it with cones or lugs which form depressions inthe tile to facilitate the passage of a nail through `the latter Without fracturing the tile. These depressions do not extend entirely through the tile so that perforations will only beprovided at 'the points necessary to receive theynail's. `The arrangement of these cones on the pallet is such as to form the depressions Aat the points in the tile Wherethey may be needed, when the tile is cut or divided'to lit the hips andvalleys of a roof. The pallets are also provided 4vvith depressions for the purpose offorrllng lugs on the underside of 'the'tile, one of the lugs being adaptedto engagea'cleaton'a roof.

'In' theaccompanying drawino', a pre-J ferred embodiment of the inven ion 4 is il?V lustrated, and attention is called tolthe fact that the details 'illustrat'edmay'be changed Withoutdeparting from thespirit of the inpurpose of the'lpresent descriptiom reference will be had to the drawingsgin which:

' Figure 1 isa side'vieiv" of the :improved machine.`

Fig. 2 is fa toppla'n. u Fig. 3 is a rearpvieiv. i. F ig. 4 is a vertical longitudinal sectional view of a portion of the'p'ina'chine, showing the plastic material forming "the-tile, arranged fin the mold boX O11 the palletfand the edge cutter in engagement with the upper edgeof the mold box. u i

Fig; 5 is a transverse @vertical sectional View ofap'ortion of the' machine and illusventionjas expressed in the claims.. For thev 19,23. serial 110.644,661.

trating the manner in Which the trovvel bar scrapes surplus material from the upper sur` face of the plastic mass.

Fig. 6 is a. top plan View ofthe improved pallet. Fig. Fig. same.

The general construction of the present machine is Well knowmand the present in- 7' is aside vievv; and

8 is an end vievv respective ofthe vention resides in the mold box, pallet,y

trovvel bar and edge cutter.

Themachine consists of a frame 1 of any desired construction provided at its upper end with horizontally disposed cross-bars 2 secured in position by means of lbolts 3. A

l mold box 4 issecured to the bars 2 by any Another object is to furnish pallets which. shape `the bottom ofeach tilela'nd provide.

suitable means andejector pins 5 project into the box. These ejector pins have their lovver ends connected to a plate 6 which is vertically reciprocated by a lrod 7' connected toy a bell-crank treadle 8 that is pivot-ally supported at 9. l/Vhen the operator steps on the treaolle 8, the pins 5 will be raisedin a manner which is obvious.

` The mold box l isof special construction and it consists of side Wallsv 1,0 and 11, and end Walls12 and 13. The side Walls have their upper edges arranged in the same horizontal plane', as shown in Fig. 5, but the end Walls have edges of special Configuration. As'shown in Fig, each end Wall has an angular recess '141 which merges into one endv of a horizontal Surface l15. The opposite end o-f the surface 15 merges intothe, side Wall of a groove 16 and the opposite Wall of this groove merges linto ab horizontal surface 17 'that is arranged in the same horizontal plane as the surface 1Sl of the recess 14. One corner of the boX as best shown in Fig. 2 is provided with an inwardly extending angular lug 19 which joins the Walls 1l and`13 and is adapted to form an angular recess in one corner of areetangular tile molding in said machine.

i This special shape of the mold boX is providedV for other purposes which will be hereinafter described.

The pallet 20 which also forms a novel feature of the present invention is removably arranged in the mold box and it pref: erably consists ofa cast metal plate adapted .to rest upon; the u per ends of the ad- Bustine` .screwsr 5a Whicf l ro'ect from cross l e. `P l V zontal surface 22 that extends lfrom one end edge 23 of the pallet to a substantially vertical wall 24 spaced from the opposite end edge 25 of thepallet. The surface 22 merges into a longitudinally extending upright rib 26 which reaches ,from

of the rib 26.

theV edge 23 to the wall 24. The crner of the pallet between the wall 24 and the edge 25 forms a lug 27 which is arranged in a lower plane than the upper surface This lug 27 together with the upright wall 24 is adapted to form a depending lug at one corner of a tile, which will fit in an oppositeV cut out corner of the tiler formed by the lug 19 of the mold box. The pallet is provided with a horizontal ledge 23 at one end which extends from a cut out corner 29 of the pallet across the lug 27 to the'edge 21 of the pallet. The main upper surface 30 of the pallet is in a horizontal plane and rectangular raised portions 31 extend upwardly from this surface. Conical pins or lugs 32 also extend upwardly from the surface 30 and are designed to Vform depressions-in the underside 4of the tile made by the `machine. These lugs 32 are in substantially Tshaped formation, so that `they form the depressions in the tile at proper points to.be utilizedy even when the tile is divided to lfit a certain spot in a roof. lThe lugs- 32 do not extendA entirely through the material of which the tile is formed, but terminate a short distance from the upper surface of the tile, and this permits the operator to drive a nail through the tile at the points where the depressions occur, and the hole thus made may be utilized for driving a nail through the tile to secure the same to a roof. The cone shape of the depressions formed in Vthe tile will facilitate the passage of a nail through the tile without fracturing the latter. One end of the pallet is also provided with a ledge 33 designed to form a depending lug at one end of the cast tile.

llVhen using the machine, this special pallet is placed in the box on the screws 5a and then the plasticy material 34 to be molded is placed in the box. As shown in Fig. 4, the ledge 23 of the pallet will form a transverse lug 35 at one end of tile, while theledge 33 will form a similar lug 36 at the opposite end of the tile. At the same time the surface 30 and raised portions 31 of the pallet will form cavities 37 and ribs 33 in the underside of the tile.

Referring to 5, it will be noted that the horizontal surface 30 at one edge of pallet will form a ledge 39 at one edge of the tile material 34, While the surfaces 22 and 30, and the rib 26 of the pallet are forming a hook portion 40 at the opposite edge of the tile.

In orderto shape the upper surface of the tile, the improved trowel bar 41 has been devised. This bar has handles 42 at its opposite ends to permit the operator to move the bar over the mold'box, while the bar is sliding on guide rails 43. The trowel bar has an elongated recess 44 in its under side' and adjacent to one end of this recess it has a dependinglug 45 which shapes the upper edge at one side of the tile. It will be noted from Fig. 5 that the lug 26 of the pallet provides a downwardly extending hook `at one side edge portion of the tile while the lug 45 of the trowel bar forms an upwardly extending hook at the opposite edge portion of the tile. In the finished tiles, these hooks of adjacent tiles are adapted to interlock.

From Fig. 3 it may be seen thatk the upper edge of each ofthe end walls 12 and 13 of the mold box is similar in shape to the lower edge of the intermediate portion of the trowel bar 41,'so that said trowel bar may be slid over the box` without interference. In this movement the Vcorner 46 of the trowel bar willmove through the cut out corner 14 of the mold box, while the lug 45 of the trowel bar will pass through the cavity 16 of the mold box. e

After the trowel bar has been moved over the mold box, the cutter 47 is opera-ted7 and this cutter has. a corner lug conformingto4 the corner lug 19 of the mold box. The lower edge of the ,cutter 47 Vconforms generi ally to the shape of the upper edges'of the walls ofthe moldqbox, so that said cutter functions .to cut surplus edge of the tile. n

After the treadle 8 has been' depressed to raise ejector pins 5 and the finished tile has been removedand placed in rack for curing, the cutter is raised to thep'osition shown in Figs. 1, 2 and 3. i Y V The adjusting screws 5a permit raising or lowering of the pallet to produce tiles of the desired thickness. A 'v It isbelieved from the foregoing, that the construction andr operation of the machine may be readily understood, and it is apparent that the elements disclosed may be changed without departing from the spirit of the invention as claimed.

What is claimed and desired to be secured by Letters Patent is:

1. A molding machine including a mold box provided at one corner only with an inwardly extending angular lug, a rectangular pallet arranged in said box and having an angular notch atone corner adapted to engage said lug, said` mold box having end material from the Sts thewalls7 each of which has a'straight unbroken "9 upper edge provided at one end with an angular notch and at its opposite end with a channel-shaped portion, a troWel bar adapted to slide over said box and having an under surface conforming to the shape of the upper edge of each end of the box for smoothing' and shaping the upper surface of a tile in the box, and a pivotally mounted endless, rectangular cutter conforming in shape to the upper edge of the box and adapted to snugly engage said edge for cut ting surplus material from the edge of the tile when the pallet is raised, said pallet being provided `with spaced upwardly extend ing conical lugs of less height than the upper edges of the end walls of the box and adapted to form depressions in the under side of the tile of less height than the thickness of the latter, said lugs being in Teshaped formation with the stem of the T extending substantially throughout the length of the pallet.

2. A molding machine including a mold box, a pallet arranged in said box and having upwardly extending rectangular lugs arranged at opposite sides of a longitudinally disposed central channel, a longitudinal series of spaced conical lugs extending upwardly from the bottom of said channel and of less height than the upper edges of the end Walls of the box, and a trowel bar mounted for movement over said box and provided with an under surface conforming to the shape oit the upper edges of the end Walls of the box for shaping the upper surface of a tile Within the box yWhile the pallet is shaping the underside of the tile.

In testimony whereof I alix my signature.`

JOHN WRIGHT WTARREN. 

